Bromine Has Two Naturally Occurring Isotopes, Br-79 and Br-81

question 82

Multiple Choice

Bromine has two naturally occurring isotopes, Br-79 and Br-81. The mass of Br-79 is 78.92 amu with a percent abundance of 50.69%. If the atomic mass of bromine is 79.904 amu, calculate the mass and percent abundance of Br-81.

• A)80.916 amu and 50.69%
• B)78.921 amu and 49.31%
• C)79.904 amu and 49.31%
• D)80.913 amu and 49.31%
• E)80.028 amu and 50.31%

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Definitions:

Post-contractual Problem

Issues or disputes that arise after a contract has been signed and during its execution period.

Agency Costs

Costs incurred in principal–agent relationships; these costs are associated with moral hazard and adverse selection problems.

Adverse Selection

A situation in economics and insurance where the party on one side of the deal has more information than the party on the other side, leading to an imbalance and potentially unfair outcomes.

Moral Hazard

The risk that one party to an agreement will engage in behavior that is undesirable from the other party's perspective because it does not bear the full consequences of its actions.